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Shawn Guo69c31b72011-09-06 14:59:40 +08001/*
2 * Copyright 2011 Freescale Semiconductor, Inc.
3 * Copyright 2011 Linaro Ltd.
4 *
5 * The code contained herein is licensed under the GNU General Public
6 * License. You may obtain a copy of the GNU General Public License
7 * Version 2 or later at the following locations:
8 *
9 * http://www.opensource.org/licenses/gpl-license.html
10 * http://www.gnu.org/copyleft/gpl.html
11 */
12
13#include <linux/linkage.h>
14#include <linux/init.h>
Johannes Berg26e30c62016-01-27 17:59:36 +010015#include <asm/assembler.h>
Shawn Guo69c31b72011-09-06 14:59:40 +080016
Shawn Guo087bb282013-04-16 22:11:19 +080017diag_reg_offset:
18 .word g_diag_reg - .
19
20 .macro set_diag_reg
21 adr r0, diag_reg_offset
22 ldr r1, [r0]
23 add r1, r1, r0 @ r1 = physical &g_diag_reg
24 ldr r0, [r1]
25 mcr p15, 0, r0, c15, c0, 1 @ write diagnostic register
26 .endm
27
Shawn Guo69c31b72011-09-06 14:59:40 +080028ENTRY(v7_secondary_startup)
Johannes Berg26e30c62016-01-27 17:59:36 +010029ARM_BE8(setend be) @ go BE8 if entered LE
Shawn Guo087bb282013-04-16 22:11:19 +080030 set_diag_reg
Shawn Guo69c31b72011-09-06 14:59:40 +080031 b secondary_startup
32ENDPROC(v7_secondary_startup)